What is Cathode Ray Tube?

A cathode ray tube (CRT) is a vacuum tube that generates images using electron beams. It consists of various key components, including a cathode, anode, and a phosphorescent screen. When a voltage is applied, the cathode emits electrons, which are accelerated towards the screen by anodes, which creates visible light upon striking the phosphorescent coating.

Characteristics of Cathode Ray Tubes

• Images are formed by directing electron beams onto a phosphorescent screen, where they create bright spots known as pixels.
• CRT displays offer various resolutions, measured in terms of the number of pixels horizontally and vertically.
• CRTs can display a wide range of colors by varying the intensity of the electron beams and using color phosphors.
• CRT monitors have high refresh rates, providing smooth motion in videos and games.
• CRTs are known for their robustness and longevity, often outlasting newer display technologies in terms of lifespan.

A cathode ray tube, commonly known as CRT, is a vacuum tube used to display images. The CRT can be used to convert variations of voltages into visible patterns and applied in instruments, televisions and monitors and for radar systems, oscilloscopes, medical imaging devices, etc. In this article, we will explore some real-life applications of cathode ray tube.